- NAME
- SYNOPSIS
- DESCRIPTION
- COMMAND OPTIONS
- EXAMPLE
- NOTES
- SEE ALSO

# NAME

openssl-pkeyparam, pkeyparam - public key algorithm parameter processing tool

# SYNOPSIS

openssl pkeyparam [-in filename] [-out filename] [-text] [-noout] [-engine id]

# DESCRIPTION

The pkey command processes public or private keys. They can be converted between various forms and their components printed out.

# COMMAND OPTIONS

-in filename

  This specifies the input filename to read parameters from or standard input if this option is not specified.

-out filename

  This specifies the output filename to write parameters to or standard output if this option is not specified.

-text

  prints out the parameters in plain text in addition to the encoded version.

-noout

  do not output the encoded version of the parameters.

-engine id

  specifying an engine (by its unique id string) will cause pkeyparam to attempt to obtain a functional reference to the specified engine, thus initialising it if needed. The engine will then be set as the default for all available algorithms.

# EXAMPLE

Print out text version of parameters:

     openssl pkeyparam -in param.pem -text

# NOTES

There are no -inform or -outform options for this command because only PEM format is supported because the key type is determined by the PEM headers.

# SEE ALSO

genpkey, rsa, pkcs8, dsa, genrsa, gendsa